QtCollider/widgets/QcLevelIndicator.h

   1 /************************************************************************
   2 *
   3 * Copyright 2010 Jakob Leben (jakob.leben@gmail.com)
   4 *
   5 * This file is part of SuperCollider Qt GUI.
   6 *
   7 * This program is free software: you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation, either version 3 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 *
  20 ************************************************************************/
  21
  22 #ifndef QC_LEVEL_INDICATOR_H
  23 #define QC_LEVEL_INDICATOR_H
  24
  25 #include "../QcHelper.h"
  26
  27 #include <QWidget>
  28 #include <QTimer>
  29
  30 class QcLevelIndicator : public QWidget, public QcHelper
  31 {
  32   Q_OBJECT
  33   Q_PROPERTY( float value READ dummyFloat WRITE setValue );
  34   Q_PROPERTY( float warning READ dummyFloat WRITE setWarning );
  35   Q_PROPERTY( float critical READ dummyFloat WRITE setCritical );
  36   Q_PROPERTY( float peak READ dummyFloat WRITE setPeak );
  37   Q_PROPERTY( bool drawPeak READ dummyBool WRITE setDrawPeak );
  38   Q_PROPERTY( int ticks READ dummyInt WRITE setTicks );
  39   Q_PROPERTY( int majorTicks READ dummyInt WRITE setMajorTicks );
  40
  41 public:
  42   QcLevelIndicator();
  43   void setValue( float f ) { _value = f; update(); }
  44   void setWarning( float f ) { _warning = f; update(); }
  45   void setCritical( float f ) { _critical = f; update(); }
  46   void setPeak( float f ) { _peak = f; update(); }
  47   void setDrawPeak( bool b ) { _drawPeak = b; update(); }
  48   void setTicks( int i ) { _ticks = qMax(i,0); update(); }
  49   void setMajorTicks( int i ) { _majorTicks = qMax(i,0); update(); }
  50   virtual QSize sizeHint() const { return QSize( 25, 150 ); }
  51 private Q_SLOTS:
  52   void clipTimeout();
  53 private:
  54   void paintEvent( QPaintEvent *e );
  55   float _value;
  56   float _warning;
  57   float _critical;
  58   float _peak;
  59   bool _drawPeak;
  60   int _ticks;
  61   int _majorTicks;
  62   bool _clipped;
  63   QTimer *_clipTimer;
  64 };
  65
  66 #endif